What ports does Apache Hadoop version 1.0.3 use for intracluster communicaion of the daemons

Question

I know port 22 is only used for control scripts.

But i need to know what ports I should open for my 3 node cluster. 2 slaves, 1 namenode/jobtracker.

On what port do the daemons run? On what ports are the URLs displayed?

The hadoop distro is: Apache Hadoop version 1.0.3

Answer 1

By URL I assume you mean the JobTracker and TaskTracker interfaces. The breakdown is as follows:

Namenode                50070   
Datanodes               50075 
Secondarynamenode       50090 
JobTracker              50030   
TaskTracker             50060